26 static __inline__ int arch_atomic_read(const atomic_t *v)  in arch_atomic_read()  argument
30 	__asm__ __volatile__("lwz%U1%X1 %0,%1" : "=r"(t) : "m<>"(v->counter));  in arch_atomic_read()
35 static __inline__ void arch_atomic_set(atomic_t *v, int i)  in arch_atomic_set()  argument
37 	__asm__ __volatile__("stw%U0%X0 %1,%0" : "=m<>"(v->counter) : "r"(i));  in arch_atomic_set()
41 static __inline__ void arch_atomic_##op(int a, atomic_t *v)		\
47 	#asm_op "%I2" suffix " %0,%0,%2\n"				\
50 	: "=&r" (t), "+m" (v->counter)					\
51 	: "r"#sign (a), "r" (&v->counter)				\
56 static inline int arch_atomic_##op##_return_relaxed(int a, atomic_t *v)	\
62 	#asm_op "%I2" suffix " %0,%0,%2\n"				\
65 	: "=&r" (t), "+m" (v->counter)					\
66 	: "r"#sign (a), "r" (&v->counter)				\
73 static inline int arch_atomic_fetch_##op##_relaxed(int a, atomic_t *v)	\
82 	: "=&r" (res), "=&r" (t), "+m" (v->counter)			\
83 	: "r"#sign (a), "r" (&v->counter)				\
121 #define arch_atomic_cmpxchg(v, o, n) \  argument
122 	(arch_cmpxchg(&((v)->counter), (o), (n)))
123 #define arch_atomic_cmpxchg_relaxed(v, o, n) \  argument
124 	arch_cmpxchg_relaxed(&((v)->counter), (o), (n))
125 #define arch_atomic_cmpxchg_acquire(v, o, n) \  argument
126 	arch_cmpxchg_acquire(&((v)->counter), (o), (n))
128 #define arch_atomic_xchg(v, new) \  argument
129 	(arch_xchg(&((v)->counter), new))
130 #define arch_atomic_xchg_relaxed(v, new) \  argument
131 	arch_xchg_relaxed(&((v)->counter), (new))
140 arch_atomic_try_cmpxchg_lock(atomic_t *v, int *old, int new)  in arch_atomic_try_cmpxchg_lock()  argument
146 "1:	lwarx	%0,0,%2,%[eh]	# atomic_try_cmpxchg_acquire		\n"  in arch_atomic_try_cmpxchg_lock()
148 "	bne-	2f							\n"  in arch_atomic_try_cmpxchg_lock()
149 "	stwcx.	%4,0,%2							\n"  in arch_atomic_try_cmpxchg_lock()
152 "2:									\n"  in arch_atomic_try_cmpxchg_lock()
153 	: "=&r" (r), "+m" (v->counter)  in arch_atomic_try_cmpxchg_lock()
154 	: "r" (&v->counter), "r" (o), "r" (new), [eh] "n" (eh)  in arch_atomic_try_cmpxchg_lock()
164  * @v: pointer of type atomic_t
165  * @a: the amount to add to v...
166  * @u: ...unless v is equal to u.
168  * Atomically adds @a to @v, so long as it was not @u.
169  * Returns the old value of @v.
171 static __inline__ int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)  in arch_atomic_fetch_add_unless()  argument
179 	beq	2f \n\  in arch_atomic_fetch_add_unless()
180 	add%I2c	%0,%0,%2 \n"  in arch_atomic_fetch_add_unless()
184 "	sub%I2c	%0,%0,%2 \n\  in arch_atomic_fetch_add_unless()
185 2:"  in arch_atomic_fetch_add_unless()
187 	: "r" (&v->counter), "rI" (a), "r" (u)  in arch_atomic_fetch_add_unless()
195  * Atomically test *v and decrement if it is greater than 0.
196  * The function returns the old value of *v minus 1, even if
197  * the atomic variable, v, was not decremented.
199 static __inline__ int arch_atomic_dec_if_positive(atomic_t *v)  in arch_atomic_dec_if_positive()  argument
208 	blt-	2f\n"  in arch_atomic_dec_if_positive()
213 2:"	: "=&b" (t)  in arch_atomic_dec_if_positive()
214 	: "r" (&v->counter)  in arch_atomic_dec_if_positive()
225 static __inline__ s64 arch_atomic64_read(const atomic64_t *v)  in arch_atomic64_read()  argument
229 	__asm__ __volatile__("ld%U1%X1 %0,%1" : "=r"(t) : "m<>"(v->counter));  in arch_atomic64_read()
234 static __inline__ void arch_atomic64_set(atomic64_t *v, s64 i)  in arch_atomic64_set()  argument
236 	__asm__ __volatile__("std%U0%X0 %1,%0" : "=m<>"(v->counter) : "r"(i));  in arch_atomic64_set()
240 static __inline__ void arch_atomic64_##op(s64 a, atomic64_t *v)		\
246 	#asm_op " %0,%2,%0\n"						\
249 	: "=&r" (t), "+m" (v->counter)					\
250 	: "r" (a), "r" (&v->counter)					\
256 arch_atomic64_##op##_return_relaxed(s64 a, atomic64_t *v)		\
262 	#asm_op " %0,%2,%0\n"						\
265 	: "=&r" (t), "+m" (v->counter)					\
266 	: "r" (a), "r" (&v->counter)					\
274 arch_atomic64_fetch_##op##_relaxed(s64 a, atomic64_t *v)		\
283 	: "=&r" (res), "=&r" (t), "+m" (v->counter)			\
284 	: "r" (a), "r" (&v->counter)					\
322 static __inline__ void arch_atomic64_inc(atomic64_t *v)  in ATOMIC64_OPS()
327 "1:	ldarx	%0,0,%2		# atomic64_inc\n\  in ATOMIC64_OPS()
329 	stdcx.	%0,0,%2 \n\  in ATOMIC64_OPS()
331 	: "=&r" (t), "+m" (v->counter)  in ATOMIC64_OPS()
332 	: "r" (&v->counter)  in ATOMIC64_OPS()
337 static __inline__ s64 arch_atomic64_inc_return_relaxed(atomic64_t *v)  in arch_atomic64_inc_return_relaxed()  argument
342 "1:	ldarx	%0,0,%2		# atomic64_inc_return_relaxed\n"  in arch_atomic64_inc_return_relaxed()
344 "	stdcx.	%0,0,%2\n"  in arch_atomic64_inc_return_relaxed()
346 	: "=&r" (t), "+m" (v->counter)  in arch_atomic64_inc_return_relaxed()
347 	: "r" (&v->counter)  in arch_atomic64_inc_return_relaxed()
353 static __inline__ void arch_atomic64_dec(atomic64_t *v)  in arch_atomic64_dec()  argument
358 "1:	ldarx	%0,0,%2		# atomic64_dec\n\  in arch_atomic64_dec()
360 	stdcx.	%0,0,%2\n\  in arch_atomic64_dec()
362 	: "=&r" (t), "+m" (v->counter)  in arch_atomic64_dec()
363 	: "r" (&v->counter)  in arch_atomic64_dec()
368 static __inline__ s64 arch_atomic64_dec_return_relaxed(atomic64_t *v)  in arch_atomic64_dec_return_relaxed()  argument
373 "1:	ldarx	%0,0,%2		# atomic64_dec_return_relaxed\n"  in arch_atomic64_dec_return_relaxed()
375 "	stdcx.	%0,0,%2\n"  in arch_atomic64_dec_return_relaxed()
377 	: "=&r" (t), "+m" (v->counter)  in arch_atomic64_dec_return_relaxed()
378 	: "r" (&v->counter)  in arch_atomic64_dec_return_relaxed()
388  * Atomically test *v and decrement if it is greater than 0.
389  * The function returns the old value of *v minus 1.
391 static __inline__ s64 arch_atomic64_dec_if_positive(atomic64_t *v)  in arch_atomic64_dec_if_positive()  argument
399 	blt-	2f\n\  in arch_atomic64_dec_if_positive()
404 2:"	: "=&r" (t)  in arch_atomic64_dec_if_positive()
405 	: "r" (&v->counter)  in arch_atomic64_dec_if_positive()
412 #define arch_atomic64_cmpxchg(v, o, n) \  argument
413 	(arch_cmpxchg(&((v)->counter), (o), (n)))
414 #define arch_atomic64_cmpxchg_relaxed(v, o, n) \  argument
415 	arch_cmpxchg_relaxed(&((v)->counter), (o), (n))
416 #define arch_atomic64_cmpxchg_acquire(v, o, n) \  argument
417 	arch_cmpxchg_acquire(&((v)->counter), (o), (n))
419 #define arch_atomic64_xchg(v, new) \  argument
420 	(arch_xchg(&((v)->counter), new))
421 #define arch_atomic64_xchg_relaxed(v, new) \  argument
422 	arch_xchg_relaxed(&((v)->counter), (new))
426  * @v: pointer of type atomic64_t
427  * @a: the amount to add to v...
428  * @u: ...unless v is equal to u.
430  * Atomically adds @a to @v, so long as it was not @u.
431  * Returns the old value of @v.
433 static __inline__ s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)  in arch_atomic64_fetch_add_unless()  argument
441 	beq	2f \n\  in arch_atomic64_fetch_add_unless()
442 	add	%0,%2,%0 \n"  in arch_atomic64_fetch_add_unless()
446 "	subf	%0,%2,%0 \n\  in arch_atomic64_fetch_add_unless()
447 2:"  in arch_atomic64_fetch_add_unless()
449 	: "r" (&v->counter), "r" (a), "r" (u)  in arch_atomic64_fetch_add_unless()
458  * @v: pointer of type atomic64_t
460  * Atomically increments @v by 1, so long as @v is non-zero.
461  * Returns non-zero if @v was non-zero, and zero otherwise.
463 static __inline__ int arch_atomic64_inc_not_zero(atomic64_t *v)  in arch_atomic64_inc_not_zero()  argument
469 "1:	ldarx	%0,0,%2		# atomic64_inc_not_zero\n\  in arch_atomic64_inc_not_zero()
471 	beq-	2f\n\  in arch_atomic64_inc_not_zero()
473 	stdcx.	%1,0,%2\n\  in arch_atomic64_inc_not_zero()
477 2:"  in arch_atomic64_inc_not_zero()
479 	: "r" (&v->counter)  in arch_atomic64_inc_not_zero()
484 #define arch_atomic64_inc_not_zero(v) arch_atomic64_inc_not_zero((v))  argument